Ryo Ishikawa, out since mid-February with a lower-back injury, told Kyodo News Saturday he is recovered to the extent he can take full swings with irons but is still uncertain when he can make a comeback.

The 24-year-old was diagnosed with lumber discopathy after pulling out of the Pebble Beach Pro-Am and has been absent from the PGA Tour since as he continues his rehab in Japan.

"There's still some pain when I swing a driver. Nothing is decided (about my return timetable)," Ishikawa said. "I'm doing training and the (swings on) irons are really sharp. I'm not pessimistic as there're only woods left to work on."